CVE-2020-1984

SYSTEM privilege escalation via hardcoded script execution

Published Apr 8, 2020 · Updated Sep 17, 2024

External path control in all versions of Secdo for Windows allows local users to gain SYSTEM privileges through a planted script. Secdo checks a hardcoded location and executes a script found there without ensuring that the file and its parent path are trusted. The local user needs create-folder or append-data rights at the Windows system-drive root, and the path must be absent or writable; successful execution grants system privileges.

CVSS severity7.8
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

External path control in all versions of Secdo for Windows allows local users to gain SYSTEM privileges through a planted script. Secdo checks a hardcoded location and executes a script found there without ensuring that the file and its parent path are trusted. The local user needs create-folder or append-data rights at the Windows system-drive root, and the path must be absent or writable; successful execution grants system privileges.

The record

CVE
CVE-2020-1984
Published
Apr 8, 2020
Updated
Sep 17, 2024
Vendor
Secdo
Product
Secdo
Classifications
CWE-20, CWE-73, T1574
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 8, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=all versions

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Secdo · Secdoversion=all versions

Published CVSS scores

7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C
7.8Palo Alto NetworksCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-73External Control of File Name or Path
T1574Hijack Execution Flow

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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